Mind math

[nabinsinghrana]

(3^-1+3^-1+3^-1)÷27^-1 =?
solution:
(1/3+1/3+1/3)÷1/27
{(1+1+1)/3}÷1/27
(3/3)÷1/27
1÷(1/27)
27 Ans

[Kevine]

(3^(-1) + 3^(-1) + 3^(-1))/27^(-1) =
= (3 • 3^(-1))/27^(-1) =
= 1 / 27^(-1) =
= 1 / (1/27) =
= 1 • (27/1) =
= 1 • 27 = 27

[HenkVanLeeuwen-io]

It =1/3*3/(3^3)^(-1)=1/3^(-3)
=1/(1/3^3)=1*(27/1)=27.

[sylvesterogbolu-otutu]

The answer is None (Choice D).

By inspection, the numerator sums up to 1.

3(1/3) = 3/3 = 1.

The denominator is 1/27.

The expression then boils down to the reciprocal of 1/27, which is 27.

1 ÷ 1/27 => 1 × 27/1 = 27.

27 is not in any of the answer choices.

[JohnNucci-vq]

Yeah, 27… true. I just did it in my head sitting watching FB and drinking my beer. No pencil like other harder examples. THX.

[hectorrafaelruizavila]

3^(-1)+3^(-1)+3^(-1)/27^(-1)=
1/3+1/3+1/3=3/3=1
27^(-1)=1/27
1/1/27= 1•27/1=27/1 =27
Por lo tanto la respuesta es 27.

[ChavoMysterio]

(3^-1+3^-1+3^-1)/(27^-1)
[3(3^-1)]/(3^-3)
(3⁰)/(3^-3)
3⁰•3³
3³=27
None ❤

[nimaj]

ans is D none:
3^-1(1+1+1)/1/3³=(3^-1)3/1/3³
3⁰(3³)/1=1(3³)/1=3³=27 ans✓

[ReNe-ymip]

The answer is 27 (not 3) checked on calculator.
Here's why:
3^-1=1/3
1/3+1/3+1/3=1
1/27^-1=1*27=27

[iMagUdspEllr]

27.

At least provide the correct answer instead of "none".

[luisruiz]

3‐¹+3‐¹+3-¹=1
27‐1=1/27
1/1/27=27/1=27

[jhamthekiller]

They are all really wrong, the answer is C.
You only have to replace those that have -1 as an exponent, what is in the numerator add them homogeneously (Everything would be 1/9) and below it is like 1/27, if you apply ear you get 27/9 and that is equal to 3

[ennijumayani]

3-¹+3-¹+3-¹ 27 27

27-¹ 3.1/3 1